An Internal Quad-Band Printed Monopole Antenna for Oval-Shaped Mobile Terminals

An internal quad-band printed monopole antenna for oval-shaped mobile phone is presented. The antenna occupies a compact area of the upper part of the oval-shaped ground plane. The printed monopole antenna has two branches, which generate two resonant bands centered at around 888 and 1820 MHz. The achieved bandwidth covers GSM850 (824-894 MHz), GSM900 (880-960 MHz), DCS1800 (1710-1880 MHz), and PCS1900 (1850-1990 MHz) bands. Details of the proposed antenna design and results are presented and discussed; and good agreement is obtained between the simulated and measured results.